您好,加载s3m参考一下这个范例http://support.supermap.com.cn:8090/webgl/examples/webgl/editor.html#trafficSimulation
var urls = [ //加载模型信息
'./data/car/qiche1.s3m',
'./data/car/qiche2.s3m',
'./data/car/qiche3.s3m',
'./data/car/qiche4.s3m',
];
var labelAdded = false;
var Factor = urls.length;
var keymap = {};
for (var i = 0; i < Factor; i++) {
var url = urls[i];
keymap[url] = [];
}
var layer = new Cesium.DynamicLayer3D(scene.context, urls);
scene.primitives.add(layer);